Hey guys, wifi problem, been around for a while. Just addressing it now

Hey everyone, Ive been on the rooting scene since about last February. Since I first rooted, my wifi speeds haven't been what they should be, on any rom. I'm posting it here because this is the rom I'm using atm. My YouTube load times are slower (in HD) than if I used 3g. I'd love to get this fixed. Is there some diagnostic I could run for you guys to see what's going on? Any help is appreciated.